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Sur d’autres sites (4535)

  • ffmpeg : getting larger gif file after optimization [closed]

    28 août 2024, par xaxa

    I'm trying to use ffmpeg to reduce the size of GIF images by lowering fps and color palette size. This is the command I use :

    


    ffmpeg -i initial.gif -filter_complex "[0]fps=${fps},split[m][t];[t]palettegen=max_colors=${max_colors}[p];[m][p]paletteuse" output.gif


    


    however, for some reason I'm getting larger files even if I do something as stupid as fps=1, max_colors=4.

    


    here's the initial file :
enter image description here

    


    here's what I've got after the transformation :
enter image description here

    


    the command was :

    


    ffmpeg -i eglite.gif -filter_complex "[0]fps=1,split[m][t];[t]palettegen=max_colors=4[p];[m][p]paletteuse" output.gif


    


    and the sizes I get are :

    


    -rw-r--r-- 1 work work    15860 Aug 26 11:30 eglite.gif
-rw-r--r-- 1 work work    21395 Aug 28 21:35 output.gif


    


    Here's my ffmpeg version :

    


    ffmpeg version n7.0.2 Copyright (c) 2000-2024 the FFmpeg developers
built with gcc 14.2.1 (GCC) 20240805
configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-amf --enable-avisynth --enable-cuda-llvm --enable-lto --enable-fontconfig --enable-frei0r --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libdav1d --enable-libdrm --enable-libdvdnav --enable-libdvdread --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libharfbuzz --enable-libiec61883 --enable-libjack --enable-libjxl --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-librav1e --enable-librsvg --enable-librubberband --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpl --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-nvdec --enable-nvenc --enable-opencl --enable-opengl --enable-shared --enable-vapoursynth --enable-version3 --enable-vulkan
libavutil      59.  8.100 / 59.  8.100
libavcodec     61.  3.100 / 61.  3.100
libavformat    61.  1.100 / 61.  1.100
libavdevice    61.  1.100 / 61.  1.100
libavfilter    10.  1.100 / 10.  1.100
libswscale      8.  1.100 /  8.  1.100
libswresample   5.  1.100 /  5.  1.100
libpostproc    58.  1.100 / 58.  1.100


    


  • How to convert rtmp hevc video stream to srt av1 endpoint with ffmpeg ?

    20 juin 2024, par Lulík

    i want use ffmpeg to listen rtmp stream and send to srt endpoint.

    


    Flow : smartphone (camera) -> laptop (ffmpeg script) -> desktop (obs studio)

    


    ffmpeg script show warning message and in obs stuido i can see any video only audio.

    


    Thank you in advance.

    


    Console output while running script (error in the end is bcs i stoped sending data from phone) :

    


    ffmpeg version git-2024-06-20-8d6014d Copyright (c) 2000-2024 the FFmpeg developers
  built with gcc 12 (Debian 12.2.0-14)
  configuration: --enable-libsvtav1 --enable-libsrt
  libavutil      59. 24.100 / 59. 24.100
  libavcodec     61.  8.100 / 61.  8.100
  libavformat    61.  3.104 / 61.  3.104
  libavdevice    61.  2.100 / 61.  2.100
  libavfilter    10.  2.102 / 10.  2.102
  libswscale      8.  2.100 /  8.  2.100
  libswresample   5.  2.100 /  5.  2.100
Input #0, flv, from 'rtmp://192.168.0.194/s/streamKey':
  Duration: 00:00:00.00, start: 0.000000, bitrate: N/A
  Stream #0:0: Video: hevc (Main), yuv420p(tv, smpte170m/bt470bg/smpte170m), 1080x1920, 10240 kb/s, 30 fps, 120 tbr, 1k tbn
  Stream #0:1: Audio: aac (LC), 44100 Hz, stereo, fltp, 131 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (hevc (native) -> av1 (libsvtav1))
  Stream #0:1 -> #0:1 (aac (native) -> mp2 (native))
Press [q] to stop, [?] for help
Svt[info]: -------------------------------------------
Svt[info]: SVT [version]:   SVT-AV1 Encoder Lib 595a874
Svt[info]: SVT [build]  :   GCC 12.2.0   64 bit
Svt[info]: LIB Build date: Jun 20 2024 14:25:08
Svt[info]: -------------------------------------------
Svt[info]: Number of logical cores available: 12
Svt[info]: Number of PPCS 76
Svt[info]: [asm level on system : up to avx2]
Svt[info]: [asm level selected : up to avx2]
Svt[info]: -------------------------------------------
Svt[info]: SVT [config]: main profile   tier (auto) level (auto)
Svt[info]: SVT [config]: width / height / fps numerator / fps denominator       : 1080 / 1920 / 120 / 1
Svt[info]: SVT [config]: bit-depth / color format                   : 8 / YUV420
Svt[info]: SVT [config]: preset / tune / pred struct                    : 10 / PSNR / random access
Svt[info]: SVT [config]: gop size / mini-gop size / key-frame type          : 641 / 16 / key frame
Svt[info]: SVT [config]: BRC mode / rate factor                     : CRF / 35 
Svt[info]: SVT [config]: AQ mode / variance boost                   : 2 / 0
Svt[info]: -------------------------------------------
Svt[warn]: Failed to set thread priority: Invalid argument
Output #0, mpegts, to 'srt://192.168.0.167:9998?mode=caller':
  Metadata:
    encoder         : Lavf61.3.104
  Stream #0:0: Video: av1, yuv420p(tv, smpte170m/bt470bg/smpte170m, progressive), 1080x1920, q=2-31, 120 fps, 90k tbn
      Metadata:
        encoder         : Lavc61.8.100 libsvtav1
  Stream #0:1: Audio: mp2, 44100 Hz, stereo, s16, 384 kb/s
      Metadata:
        encoder         : Lavc61.8.100 mp2
[mpegts @ 0x55ec921d9540] Stream 0, codec av1, is muxed as a private data stream and may not be recognized upon reading.
[in#0/flv @ 0x55ec9219cc40] Error during demuxing: Input/output error1990.7kbits/s speed=0.967x    
[out#0/mpegts @ 0x55ec922247c0] video:4431KiB audio:1138KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 6.374870%
frame=  723 fps= 31 q=35.0 Lsize=    5923KiB time=00:00:24.12 bitrate=2011.3kbits/s speed=1.04x


    


    I send video stream from mobile app over rtmp encoded with hevc to my laptop where running script ffmpeg -f flv -listen 1 -i rtmp://192.168.0.194/s/streamKey -c:v libsvtav1 -f mpegts srt://192.168.0.167:9998?mode=caller. On the desktop i have obs with media source input srt://192.168.0.167:9998?mode=listener.

    


    When i run ffmpeg script without video codec option (-c:v libsvtav1) its working fine and in obs i can see video from my phone camera. With the option i can not see video only audio.
I clearly dont understand warning message : [mpegts @ 0x55ec921d9540] Stream 0, codec av1, is muxed as a private data stream and may not be recognized upon reading..
Do I need specify codec (av1) in obs media source or my ffmpeg script is wrong ?

    


  • Marketing Analytics in Banking : How to Be Effective and Compliant

    17 septembre 2024, par Daniel Crough — Banking and Financial Services, Marketing, Privacy, banks, finserv, fintech, marketing analytics

    Marketing analytics is reshaping decision-making in the financial sector, with recent studies showing it influences over half of all marketing strategies. However, marketers surveyed by MarketingWeek identify data and analytics as the biggest skill gap in their department.

    Read More

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